CN215985176U - Gear box running state monitoring front end and monitoring system formed by same - Google Patents
Gear box running state monitoring front end and monitoring system formed by same Download PDFInfo
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- CN215985176U CN215985176U CN202121242321.4U CN202121242321U CN215985176U CN 215985176 U CN215985176 U CN 215985176U CN 202121242321 U CN202121242321 U CN 202121242321U CN 215985176 U CN215985176 U CN 215985176U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 55
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 238000009434 installation Methods 0.000 claims abstract description 30
- 239000006249 magnetic particle Substances 0.000 claims abstract description 27
- 238000005299 abrasion Methods 0.000 claims description 16
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000005461 lubrication Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 67
- 239000007788 liquid Substances 0.000 description 16
- 239000012530 fluid Substances 0.000 description 10
- 230000001050 lubricating effect Effects 0.000 description 9
- 239000010687 lubricating oil Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- General Details Of Gearings (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a front end for monitoring the running state of a gearbox, which comprises an installation structure, at least one oil magnetic particle content detection unit fixed on the installation structure, and at least one oil relative humidity detection unit fixed on the installation structure. Compared with the prior art, the utility model can meet the requirements of real-time online monitoring of the lubrication quality of the gearbox and the wear state of the gearbox, reflect the state of the gearbox in time and reduce the maintenance cost and the maintenance difficulty. In addition, still disclose the monitoring system who constitutes by above-mentioned monitoring front end. The utility model can meet the requirements of real-time online monitoring of the lubrication quality of the gearbox and the wear state of the gearbox, reflect the state of the gearbox in time and reduce the maintenance cost and the maintenance difficulty.
Description
Technical Field
The utility model relates to the technical field of wind power generation, in particular to a front end for online monitoring of the running state of a gear box and a monitoring system formed by the front end.
Background
The installation position of the wind generating set is generally far away, the operation environment is very severe, the probability of the set failure is very high, the installation and maintenance work of the set is difficult, and the installation and maintenance cost is high. The gearbox is an important mechanical part in the wind generating set and plays a role in transmitting power in the wind generating set. The running state of the gear box is an important influence factor of whether the unit can work normally, so that the running state monitoring of the gear box is particularly important, and a monitoring device capable of effectively monitoring the running state of the gear box is not available in the prior art.
Disclosure of Invention
The utility model mainly aims to provide an online monitoring front end of the running state of a gearbox and a monitoring system formed by the online monitoring front end of the running state of the gearbox, so as to solve the problem that the fault of the gearbox cannot be monitored and maintained in time in the prior art.
In order to achieve the above object, the present invention provides a front end for monitoring the operating condition of a gearbox, which comprises a mounting structure, at least one oil magnetic particle content detecting unit fixed on the mounting structure, and at least one oil relative humidity detecting unit fixed on the mounting structure.
Furthermore, the oil magnetic particle content detection unit comprises a wear degree sensor fixed on the mounting structure and a wear degree sensor cable connector arranged on the wear degree sensor. The abrasion degree sensor records the quantity of magnetic substances accumulated in the head permanent magnetic area, and the sensor measures the abrasion degree of the mechanical element by detecting the content of the magnetic particles.
Furthermore, the oil relative humidity detection unit comprises a humidity sensor fixed on the mounting structure and a humidity sensor cable connector arranged on the humidity sensor. The humidity sensor directly displays the water saturation degree by measuring the relative humidity of the oil, and is not influenced by the type and the temperature of the oil.
Furthermore, the mounting structure comprises an oil flow pipeline and mounting interfaces arranged at two ends of the oil flow pipeline. The use is very flexible, the mounting position of the interface can be selected at will, the size of the interface can be selected according to the requirement, and the measurement precision is not influenced.
Furthermore, the installation interface includes the internal thread interface that sets up in the pipeline one end is flowed through to fluid, sets up in the external thread interface that the pipeline other end is flowed through to fluid.
The inventor finds that the lubrication of the gear box is an effective method for reducing the abrasion of the teeth and the bearings in the transmission of the gear box, improving the working conditions of the teeth and the bearings and prolonging the expected service life, so that the running condition of the gear can be reflected by the state of the lubricating oil of the gear box, and the actual states of the gears and the bearings in the gear box can be judged by detecting and analyzing the state of the lubricating oil of the gear box in real time.
By monitoring, measuring and analyzing wear particles generated inside the gearbox, useful information can be obtained about the condition of the teeth and bearing running surfaces, and whether further wear can be tolerated. Most of the machine failure period has the abrasive grain characteristic size of 20-200 um, and the information is an important basis for fully representing the service life of the wearing part.
After the lubricating oil is mixed with water, the lubricating oil and the water have affinity to emulsify the oil into emulsion, so that the lubricating performance is reduced; meanwhile, the water reacts with sulfur and chloride ions in the lubricating oil to generate sulfuric acid and hydrochloric acid, so that the degradation of the lubricating oil is accelerated, the lubricating oil loses the lubricating effect, and the wear failure of teeth and bearings is caused.
The utility model relates to a gear box running state monitoring front end, which is connected with oil flowing positions of an oil pump suction inlet, a filter outlet, a radiator inlet, a radiator outlet, a distributor inlet or an oil pump suction inlet, a fine filter outlet and the like in a bypass system of a gear box lubricating and cooling system through a mounting structure, wherein an oil magnetic particle content detection unit and an oil relative humidity detection unit are connected in series; the oil relative humidity detection unit directly displays the water saturation degree by measuring the relative humidity of the oil, and is not influenced by the type and the temperature of the oil. And the staff evaluates the gear box equipment according to the monitoring data and takes corresponding measures.
The utility model also provides a system for monitoring the running state of the gearbox, which comprises a monitoring front end and a central control upper computer connected with the monitoring front end, wherein the monitoring front end comprises an installation structure, at least one oil magnetic particle content detection unit fixed on the installation structure, and at least one oil relative humidity detection unit fixed on the installation structure. The monitoring front end transmits the measured data to the central control end through analog quantity in real time, and the working personnel evaluate the gear box equipment according to the monitored data and take corresponding measures.
Furthermore, the oil liquid magnetic particle content detection unit is an abrasion degree sensor and an abrasion degree sensor cable joint arranged on the abrasion degree sensor, and the abrasion degree sensor cable joint is connected with the central control upper computer.
Further, the oil relative humidity detection unit comprises a humidity sensor fixed on the mounting structure and a humidity sensor cable connector arranged on the humidity sensor, and the humidity sensor cable connector is connected with the central control upper computer.
Therefore, the utility model can have good anti-explosion, anti-electromagnetic interference, high stability and anti-transient high voltage performance in severe operating environment (temperature is minus 40 ℃ to 85 ℃), and through strict environment and electromagnetic compatibility tests;
furthermore, the monitoring front end is connected with a central control upper computer through an RS232 serial port.
Furthermore, the mounting structure comprises an oil flow pipeline and mounting interfaces arranged at two ends of the oil flow pipeline. The oil liquid flows through the pipeline for the lubricating oil to flow through, and the oil liquid magnetic particle content detection unit and the oil liquid relative humidity detection unit detect corresponding data. Therefore, the use is very flexible, the mounting position of the interface can be selected at will, the size of the interface can be selected according to the requirement, and the measurement precision is not influenced.
The front end of the gear box running state monitoring is connected into a gear box lubricating and cooling system or a bypass system through a mounting structure, an oil magnetic particle content detection unit and an oil relative humidity detection unit are connected in series, after the gear box lubricating and cooling system is started, the oil magnetic particle content detection unit detects the quantity of magnetic substances accumulated in a head permanent magnet area, and the abrasion degree of a mechanical element is measured by detecting the content of magnetic particles; the oil relative humidity detection unit directly displays the water saturation degree by measuring the relative humidity of the oil, and is not influenced by the type and the temperature of the oil. And the staff evaluates the gear box equipment according to the monitoring data and takes corresponding measures, so that the normal operation of the gear box is guaranteed.
Compared with the prior art, the utility model can meet the requirements of real-time online monitoring of the lubrication quality of the gearbox and the wear state of the gearbox, reflect the state of the gearbox in time and reduce the maintenance cost and the maintenance difficulty.
The utility model is further described with reference to the following figures and detailed description. Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to assist in understanding the utility model, and are included to explain the utility model and their equivalents and not limit it unduly. In the drawings:
FIG. 1 is a schematic structural diagram of a front end of a gearbox operating condition monitoring system according to the present invention.
FIG. 2 is a schematic structural diagram of a gearbox operating condition monitoring system according to the present invention.
Detailed Description
The utility model will be described more fully hereinafter with reference to the accompanying drawings. Those skilled in the art will be able to implement the utility model based on these teachings. Before the present invention is described in detail with reference to the accompanying drawings, it is to be noted that:
the technical solutions and features provided in the present invention in the respective sections including the following description may be combined with each other without conflict.
Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
With respect to terms and units in the present invention. The terms "comprising," "having," and any variations thereof in the description and claims of this invention and the related sections are intended to cover non-exclusive inclusions.
The utility model discloses a front end for monitoring the running state of a gearbox, which comprises an installation structure, at least one oil magnetic particle content detection unit fixed on the installation structure, and at least one oil relative humidity detection unit fixed on the installation structure.
The oil magnetic particle content detection unit comprises a wear degree sensor 2 fixed on the mounting structure and a wear degree sensor cable connector 21 arranged on the wear degree sensor 2.
The oil relative humidity detection unit comprises a humidity sensor 3 fixed on the mounting structure and a humidity sensor cable connector 31 arranged on the humidity sensor 3.
The installation structure comprises an oil flow pipeline 1 and installation interfaces arranged at two ends of the oil flow pipeline 1.
The installation interface includes the internal thread interface 5 that sets up in the pipeline 1 one end of flowing through of fluid, sets up in the external thread interface 4 that the pipeline 1 other end was flowed through to fluid.
The system for monitoring the running state of the gearbox comprises a monitoring front end 6 and a central control upper computer 8 connected with the monitoring front end 6, wherein the monitoring front end 6 comprises an installation structure, at least one oil magnetic particle content detection unit fixed on the installation structure and at least one oil relative humidity detection unit fixed on the installation structure.
The oil magnetic particle content detection unit is a wear degree sensor 2 and a wear degree sensor cable joint 21 arranged on the wear degree sensor 2, and the wear degree sensor cable joint 21 is connected with the central control upper computer 8.
The oil relative humidity detection unit comprises a humidity sensor 3 fixed on the mounting structure and a humidity sensor cable connector 31 arranged on the humidity sensor 3, and the humidity sensor cable connector 31 is connected with the central control upper computer 8.
The monitoring front end 6 is connected with the central control upper computer 8 through an RS232 serial port 7.
As shown in figure 1, the front end for monitoring the operating state of the gearbox comprises a mounting structure, wherein the mounting structure comprises an oil liquid flowing pipeline 1 and mounting interfaces arranged at two ends of the oil liquid flowing pipeline 1. The oil liquid flowing pipeline 1 is provided with at least one oil liquid magnetic particle content detection unit fixed on the oil liquid flowing pipeline 1 and at least one oil liquid relative humidity detection unit fixed on the oil liquid flowing pipeline 1. The oil magnetic particle content detection unit comprises a wear degree sensor 2 fixed on the mounting structure and a wear degree sensor cable connector 21 arranged on the wear degree sensor 2. The oil relative humidity detection unit comprises a humidity sensor 3 fixed on the mounting structure and a humidity sensor cable connector 31 arranged on the humidity sensor 3. The installation interface includes the internal thread interface 5 that sets up in the pipeline 1 one end of flowing through of fluid, sets up in the external thread interface 4 that the pipeline 1 other end was flowed through to fluid.
Combine figure 1, figure 2, gear box running state monitoring system, including monitoring front end 6 and the well accuse host computer 8 that links to each other with monitoring front end 6, gear box running state monitoring front end, including mounting structure, mounting structure includes that fluid flows through pipeline 1, sets up in the installation interface that fluid flows through pipeline 1 both ends. The oil liquid flowing pipeline 1 is provided with at least one oil liquid magnetic particle content detection unit fixed on the oil liquid flowing pipeline 1 and at least one oil liquid relative humidity detection unit fixed on the oil liquid flowing pipeline 1. The oil magnetic particle content detection unit comprises a wear degree sensor 2 fixed on the mounting structure and a wear degree sensor cable connector 21 arranged on the wear degree sensor 2. The oil relative humidity detection unit comprises a humidity sensor 3 fixed on the mounting structure and a humidity sensor cable connector 31 arranged on the humidity sensor 3. The installation interface includes the internal thread interface 5 that sets up in the pipeline 1 one end of flowing through of fluid, sets up in the external thread interface 4 that the pipeline 1 other end was flowed through to fluid. The abrasion degree sensor cable joint 21 is connected with the upper central control computer 8. The humidity sensor cable connector 31 is connected with the upper central control computer 8. The monitoring front end 6 is connected with the central control upper computer 8 through an RS232 serial port 7.
When the gear box running state on-line monitoring front end and the monitoring system formed by the same are particularly applied to a fan system, the gear box running state monitoring front end is connected into a gear box lubricating and cooling system or a gear box lubricating and bypass system in series through a mounting interface, an oil magnetic particle content detection unit and an oil relative humidity detection unit are connected in series, after the gear box lubricating and cooling system is started, the oil magnetic particle content detection unit detects the quantity of magnetic substances accumulated in a head permanent magnet area, and the abrasion degree of a mechanical element is measured by detecting the content of magnetic particles; the oil relative humidity detection unit directly displays the water saturation degree by measuring the relative humidity of the oil, and is not influenced by the type and the temperature of the oil. And the staff evaluates the gear box equipment according to the monitoring data and takes corresponding measures.
In a specific use process, when lubricating oil flows through the online monitoring device for the running state of the gearbox, the abrasion degree sensor records the quantity of magnetic substances accumulated in the head permanent magnet area. The abrasion degree sensor can distinguish micron-sized fine particles from millimeter-sized magnetic fragments. According to the output signal of 0 … 100%, the distribution of the magnetic particles on the measuring surface can be read, and the read data is analyzed and compared to judge the internal wear state of the gear box. In addition, the wear sensor can also compensate for the permanent magnetic area, particles can be separated from the sensor head (automatic cleaning program), and the wear degree of the element can be presented through the time interval of the two cleaning programs. The humidity sensor records the relative humidity and temperature of the oil, and the absolute humidity of the oil can be calculated to the saturation limit through specific calibration of the oil. The data of the online monitoring device CAN be transmitted to the central control upper computer through an RS232 serial port or CAN (CANopen or SAE J1939) or through alternating current output (4.. 20mA), and is displayed on a central control panel.
Compared with the prior art, the gear box running state on-line monitoring front end and the monitoring system formed by the same have the following advantages:
1. the material can be used in a severe operating environment (the temperature is between 40 ℃ below zero and 85 ℃), and has good anti-explosion, anti-electromagnetic interference, high stability and anti-transient high-voltage performance after strict environment and electromagnetic compatibility tests;
2. the lubricating quality of the gearbox and the wear state of the gearbox can be monitored on line in real time, the state of the gearbox is reflected in time, and the maintenance cost and the maintenance difficulty are reduced;
3. the use is very flexible, the position of the installation interface can be selected at will, the size of the interface can be selected according to the requirement, and the measurement precision is not influenced.
The contents of the present invention have been explained above. Those skilled in the art will be able to implement the utility model based on these teachings. All other embodiments, which can be derived by a person skilled in the art from the above description without inventive step, shall fall within the scope of protection of the present invention.
Claims (2)
1. The front end for monitoring the running state of the gear box is characterized by comprising an installation structure, at least one oil magnetic particle content detection unit fixed on the installation structure and at least one oil relative humidity detection unit fixed on the installation structure;
the oil magnetic particle content detection unit comprises a wear degree sensor (2) fixed on the mounting structure and a wear degree sensor cable joint (21) arranged on the wear degree sensor (2);
the oil relative humidity detection unit comprises a humidity sensor (3) fixed on the mounting structure and a humidity sensor cable connector (31) arranged on the humidity sensor (3);
the mounting structure comprises an oil flow pipeline (1) and mounting interfaces arranged at two ends of the oil flow pipeline (1);
the installation interface comprises an internal thread interface (5) arranged at one end of the oil flow pipeline (1) and an external thread interface (4) arranged at the other end of the oil flow pipeline (1).
2. The system for monitoring the running state of the gearbox is characterized by comprising a monitoring front end (6) and a central control upper computer (8) connected with the monitoring front end (6), wherein the monitoring front end (6) comprises an installation structure, at least one oil magnetic particle content detection unit fixed on the installation structure and at least one oil relative humidity detection unit fixed on the installation structure;
the oil magnetic particle content detection unit comprises an abrasion degree sensor (2) and an abrasion degree sensor cable joint (21) arranged on the abrasion degree sensor (2), and the abrasion degree sensor cable joint (21) is connected with the central control upper computer (8);
the oil relative humidity detection unit comprises a humidity sensor (3) fixed on the mounting structure and a humidity sensor cable connector (31) arranged on the humidity sensor (3), and the humidity sensor cable connector (31) is connected with the central control upper computer (8);
the monitoring front end (6) is connected with the central control upper computer (8) through an RS232 serial port (7);
the mounting structure comprises an oil flow pipeline (1) and mounting interfaces arranged at two ends of the oil flow pipeline (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121242321.4U CN215985176U (en) | 2021-06-03 | 2021-06-03 | Gear box running state monitoring front end and monitoring system formed by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121242321.4U CN215985176U (en) | 2021-06-03 | 2021-06-03 | Gear box running state monitoring front end and monitoring system formed by same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215985176U true CN215985176U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121242321.4U Active CN215985176U (en) | 2021-06-03 | 2021-06-03 | Gear box running state monitoring front end and monitoring system formed by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215985176U (en) |
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2021
- 2021-06-03 CN CN202121242321.4U patent/CN215985176U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Front end of gearbox operation status monitoring and its monitoring system composition Effective date of registration: 20231212 Granted publication date: 20220308 Pledgee: Bank of China Limited by Share Ltd. Nanjing Jiangning branch Pledgor: NANJING FUAO INTELLIGENT TECHNOLOGY CO.,LTD. Registration number: Y2023980070902 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |